| Word Scramble - Countries | 0 | - | 4.87 | 2,106,147 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,530 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,050 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,874 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,996 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,982 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,369 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,634,787 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,615,731 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,660 |
| Countries with Four Letters | 0 | - | 4.99 | 423,511 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,066 |
| Landlocked Countries | 0 | - | 4.99 | 422,393 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,136 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,456 |
| Country Chain | 0 | - | 4.96 | 217,699 |
| Countries by Emojis | 0 | - | 4.99 | 240,537 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,145 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,871 |
| Islands by Country #1 | 0 | - | 4.90 | 175,554 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,712 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,096 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,862 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,781,786 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,281 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,832 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,900 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 217,499 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,761 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,495 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,607 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,759 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,767 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,029 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 723,094 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,726 |
| Himalayan Countries | 0 | - | 4.95 | 138,921 |
| Andean Countries | 0 | - | 4.93 | 84,737 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,940 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,000 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,551 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,887 |
| Danube Countries | 0 | - | 4.97 | 72,072 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,093 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,475 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,399 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,886 |
| European Landlocked Countries | 0 | - | 4.99 | 147,197 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,729 |
| Countries with the Most Species | 0 | - | 4.99 | 103,280 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,847 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,617 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,741 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,578 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,270 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,713 |
| Countries in the Alps | 0 | - | 4.87 | 118,278 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,384 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,119 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,695 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,638 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,564 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,985 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,723 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,546 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,204 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,896 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,681 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,552 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,261 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,518 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,574 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,004 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,348 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,276 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,147 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,148 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,246 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,268 |
| Largest Countries By Category | 0 | - | 4.97 | 158,290 |
| Countries by Countries | 0 | - | 4.96 | 63,288 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,749 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,304 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,713 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,910 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,629 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,597 |
| Island Countries | 0 | - | 4.99 | 711,188 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,378 |
| Northernmost Countries | 0 | - | 4.99 | 362,160 |
| Countries of South America | 0 | - | 5.00 | 927,954 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,692 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,611 |
| "Land" Countries | 0 | - | 4.98 | 337,456 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,206 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,372 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,303 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,877 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,623 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,702 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,778 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,688 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,693 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,176 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,242 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,757 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,558 |
| Random Countries by Borders | 0 | - | 4.99 | 82,684 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,491 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,013 |
| Countries with Megacities | 0 | - | 4.99 | 264,844 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,845 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,531 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,103 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,610 |
| Countries by Official Language | 0 | - | 4.95 | 195,329 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,494 |
| Countries in their Native Language | 0 | - | 4.99 | 199,125 |
| Independence from Whom | 0 | - | 4.99 | 212,198 |
| Subdivisions by Country | 0 | - | 4.87 | 50,447 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,802 |
| Megadiverse Countries | 0 | - | 4.96 | 135,052 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,175 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,381 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,259 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,122 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,186 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,618 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,530 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,059 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,681 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,160 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,754 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,913 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,229 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,988 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,375 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,514 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,303 |
| World Map Quiz | 0 | - | 4.81 | 65,147 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,739 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,494 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,390 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,169 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,326 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,033 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,321 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,933 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,050 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,331 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,469 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,604 |
| Widest Countries East to West | 0 | - | 4.92 | 129,691 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,466 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,428 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,137 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,796 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,626 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,911 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,387 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,810 |
| Countries with Double Letters | 0 | - | 4.96 | 96,313 |
| Countries that End in N | 0 | - | 4.95 | 171,209 |
| Countries with Five Letters | 0 | - | 4.96 | 282,650 |
| Countries with Six Letters | 0 | - | 4.94 | 213,646 |
| Countries with W | 0 | - | 4.97 | 160,390 |
| Countries with Z | 0 | - | 4.98 | 291,558 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,762 |
| Countries That End in U | 0 | - | 4.95 | 120,879 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,519 |
| Countries that End in O | 0 | - | 4.92 | 159,535 |
| Countries that End in R | 0 | - | 4.87 | 118,981 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,752 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,166 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,731 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,500 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,422 |
| Countries That End in Y | 0 | - | 4.91 | 185,896 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,979 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,898 |
| Countries that End in I | 0 | - | 4.94 | 135,117 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,151 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,842 |
| Countries That End in NIA | 0 | - | 4.92 | 109,808 |
| Countries That End in BIA | 0 | - | 4.93 | 149,240 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,147 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,451 |
| Countries That End in RIA | 0 | - | 4.93 | 126,830 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,044 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,717 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,754 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,176 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,732 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,595 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,058 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,457 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,554 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,447 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,325 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,020 |
